Hoisting-bucket.



PATENTED AUG. 27, 1907.

" G. S. WILLIAMSON.

HOISTING BUCKET. APPLIUATIONHLBD JAILB, 190s. RENEWED JAN. 2, 1907.

2 SEEETS-SHEET 1.'

INVENTOR w msssss: v

PATENTED AUG. 27, 1907.

C. S. WILLIAMSON. HOISTING BUCKET. APPLIGATIQN FILED J.AN.8, 190a. RENEWED JAN. 2, 1907.

2 SHBETS-SHEET Z.

SSES:

8444 z'Mm y WITN UNITED STATES PATENT OFFICE.

CHARLES S. WILLIAMSON, Ol IITTSBL'RG, PENXSYLVAXIA.

Katerina-BUCKET.

Specification off Letters Patent.

Patented Aug. 27, 1907,

Application filed January 8, 1906, Serial ho. 295,061. Renewed January 2, 1907. Serial No. 350,432-

To all tl'hom i! may concern:

. Be it known that l. CHARLES S. llultlAitsox, residiilg at Pittsburg, in the county of Allegheny and State of Pennsylvania. a citizen of the United States. have invented or discovered certainncw and usciul lmm ents thet'ollowing a spccilicattionl The invention described herein relates to certain improvements in grub buckets for the removal, transfer and deposition of material from one point to another.

The secti ns or halves of the buckets and their opt-mting Inechnnisn'l are generally so construct ed that the ad,- vance edges of the ht'tll tllr' must either be l'ore d l eeply into the nmterinl 11(.'t' 's. iInti11g the employment f great power for that purpose or the sections must be given an upward movement simultaneous with their movem nt towards each other. w

' The invention has t'orits object such :1 construction of bucket and operating mechanism that the udvunee or penetrating edges of the bucket:- will have when closing only euilicicnt dip or downwnrd. movement to gather up an amount of mut -rial neceatry to fill the bucket. such mo \ements being uppr lxnutnelv horizon-7 tai so that only the nutteriul on the surfac or nearly adacent thereto vill be ollected. Thi urln 'e gathering is especially desirable as requiring less power.

It t; a further object of the invention to provide ior the greatest application olpowt'lzll the beginning of the closing movmneht, When the advance edges must be forced into the material and {it th end of the closing movement in order to crush any lumps caught between the meeting edges and thus insuring a tight closing of the sections. I

The invention is hereinafter more fully described and claimed.

1n the accoriipanying drawings forming a part of this specification, F gure l: is a side el'cvtui n of my improved bucket with the sections in closed position. Fig. 2 is it front elevation of the some, Fig. 3 is a view similar to Fig. 1 showing the bucket. in open position and Fig. 4 is it detail view showing the manner of 1 meeting the bucket arms to the traveling shaft.

In the practice of my invonti n th bucket sections 1 v are provided with arms 2 which may be formed integral with the sides of theeections or suitably secured therei100 The ends of these arms are connected to a traveling shaft 3, prefcrablyby forming eyes; in the arms through which the ends ofthe shaft project. The ends of the shaft project through slots 4 formed in the side plates 5 of the supporting frame, and are provided with toothed wheels 6 prefentbly secured to the portions of the ehajt outside of the plates 5. These toothed :wheels inter mesh with nicks or two series of teeth or projections preferably formed by series of pins 7 secured to plates 5 parallel with the slots 4. By the rotation of the shaft the toothed wheels will be caused to move up and down carrying with them the ends of the arms 2. provements in Hoisting-Buckets, of which improve- The sections 1 in closing and opening have a swinging and a rotary movement, one a swinging movement around points a on the side plates 5 and the other'a rotury movement around axes indicated at b passing g'seen thztt at the beginning of the closing movement the bucket sections will be moved inwardly towards 'each other by the upward movements of the shaft 3. During these inward movements of the sections the links 8' move from slightlyinclincd to vertical positions, prcpoints a so thutthe links will operate as members oi toggle joints. By reason of this toggle-joint construction. the meeting edges of the sections will he approxinmtely parallel with each other shortly before thev come together. i

For the rotation of theshait, drums 9 are secured thereon and one end of operating ropes l0 iire secured thereto said ropes passing up alongside of guide pulleys ll socurerhto the supporting frame. These ropes may be employed not only for closing the sections but also for homing them when closed In order to support the bucket when the ropes ltHtre sluckened to permit the sections to swing out :1 hoisting rope 12 i passed airou'nd 'a-ptilley l3 secured to the frame, or otherwise attached to the frame.

In order to prevent 'nny bending or distortion of the pins 7, it is preferred that their outer ends should be sccured to straps 14 having their upper ends attached to the Shit plates 5, air shown in Fig. 2.

lclaimhercinns myinventidn: t

1. In a hoisting bucket; the combination of :1 supporting frame, a vertically movable shaft, bucket sections provided with arms having their ends loosely mounted on said shaft, and links connecting the sections to the frame. substantially as set forth. t

2. In a hoisting bucket the combination a: a supporting frame, provided with vertically arrangod vplneor proj'ec; tlons, a vertically fnm'nblc slinft, pinions mounted on the shnft and engaging the pins or projection, bucket sections provided with arms. connected 'to the shaft, llnkq connecting the bucket sections to the supporting trtime and mcanstor rotating the almtt. v I

3. In a hoisting bucket the combination or a. supporting trame 'pl-ovlded withwertimlly rranged pins or projections, pinions arranged in intel'mesh with the bins 01' pl n- Jnniiung. munn g for rotating the pinions, buck'et section s connected to the piniuns, and links vonnecting the sections to the supporting frame.

provided wiih'al'ins having pivotal connections to the S i} )f'hii;.' frame andinen'ns for rotating the pinions.

7 In a hoisting bucket the -omhinarinn of :1 frame, bucket sec tion's having :1. movable pivmm having swinging co'nnetiuns to iixml nifi-gns on I11 Mu said points being outside of the pi u tcgnl men's-mum m 15w movable 'axis. 7 4 1 In testimony whereof, I have hl'eunto svt n I i CHARLES S. WHJLL-UiSnN. 

